So I recently brought my original iMac home from school where my dad had temporarily had it working. It took him a bit to get used to the presence of his upgraded cousin, but he's taking it well. Anyway, I was considering trying to install Mac OS X on it just for kicks (I want to see what the performance of Mac OS X is on just about the earliest possible Mac you can install it on), and I was wondering what the maximum memory that it can hold is. I know that Apple states that the maximum is 256 MB (one 128 MB SO-DIMM in the upper slot, one 128 MB SO-DIMM in the lower slot), but I was wondering if that's actually the case. I know there are at least 512 MB SO-DIMMs (since my 17" G4 iMac uses those for the user-accessible slot), and I was curious as to whether the original iMac will actually recognize all 512 MB. Does anyone have any experience? I would be very interested in knowing, since it currently only has 64 MB of RAM, which is not enough to even install Mac OS X (we accidentally tried it on a 333 MHz iMac at my dad's school, and Mac OS X just refused to install -- the CD just kept spinning around in the drive; once we installed 256 more MB of RAM, it installed it without a fuss).